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@Gezine
Gezine / p2jb.c
Created May 2, 2026 17:15
PS5 12.70 kernel ucred reference leak leads to UAF
/*
Copyright (C) 2026 Gezine
This software may be modified and distributed under the terms
of the MIT license.
P2JB (Patience to Jailbreak)
Bug was patched at PS5 13.00

Proxmox VE tips

Just a somewhat chaotic list of Proxmox VE related tips/notes.

Please note that unless you see a shebang (#!/...) these code blocks are usually meant to be copy & pasted directly into the shell. Some of the steps will not work if you run part of them in a script and copy paste other ones as they rely on variables set before.
The { and } surrounding some scripts are meant to avoid cluttering your shell history with individual commands, etc. You can ignore them if you manually copy paste the individual commands.

Table of contents

LLM Wiki

A pattern for building personal knowledge bases using LLMs.

This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you.

The core idea

Most people's experience with LLMs and documents looks like RAG: you upload a collection of files, the LLM retrieves relevant chunks at query time, and generates an answer. This works, but the LLM is rediscovering knowledge from scratch on every question. There's no accumulation. Ask a subtle question that requires synthesizing five documents, and the LLM has to find and piece together the relevant fragments every time. Nothing is built up. NotebookLM, ChatGPT file uploads, and most RAG systems work this way.

@MaheshPawaar
MaheshPawaar / Backend Engineering Fundamentals: The Master Checklist
Last active May 4, 2026 23:49
the 80/20 of backend engineering — 5 pillars, 45+ topics that cover 80% of what you'll actually use on the job. no fluff, no filler. study in order, check off as you go.
# Backend Engineering Fundamentals: The Master Checklist
## Pillar 1: The Internet & Communication
The foundational rules of how data moves across the web.
* **HTTP/HTTPS Lifecycle**
* **DNS Resolution:** How a domain name (like `google.com`) is translated into an IP address.
* **TCP Handshake:** The 3-way handshake (SYN, SYN-ACK, ACK) that establishes a reliable connection.
* **TLS/SSL Handshake:** How HTTPS encrypts data in transit to prevent packet sniffing.
* **The Request/Response Cycle:** The anatomy of an HTTP request (Method, Headers, Body) and response (Status Code, Headers, Body).
@POMATu
POMATu / iptables-rules.sh
Last active May 4, 2026 23:48
Разблокировка сайтов заблокированных роскомпарашей
# Некоторые провайдеры присылают при коннекте на заблокированный айпи адрес RST пакеты и коннект рвется
# Вот такое правило блокирует прием RST пакетов от провайдера и коннект к айпи адресу больше не рвется
# Это будет работать в тандеме с DNSCrypt. Поднять можно на роутере или локально на компе
iptables -A INPUT -p tcp -m tcp --sport 443 --tcp-flags RST RST -j DROP
iptables -A INPUT -p tcp -m tcp --sport 80 -m string --string "Location: http://lawfilter.ertelecom.ru" --algo bm --to 65535 -j DROP
iptables -A INPUT -p tcp -m tcp --sport 80 -m string --string "Location: http://info.ertelecom.ru" --algo bm --to 65535 -j DROP
# может без vpn еще несколько лет проживем нормально... Впн слишком избыточен для таких целей.
@dannberg
dannberg / obsidian-people-moc.txt
Created February 19, 2024 14:47
Dann Berg's Obsidian People MOC. Uses Metabind and Dataview plugins. View full People Note system: https://dannb.org/blog/2022/obsidian-people-note-template/
[[+Home]] #MOC
```meta-bind-button
label: New People Note
hidden: false
class: ""
tooltip: ""
id: ""
style: primary
actions:
#######
## These results are still open to the public. See
## https://blog.ktz.me/the-best-media-server-cpu-in-the-world/
## for analysis of them.
# https://github.com/ironicbadger/quicksync_calc
# zoidberg - dell 7040 sff pc
CPU TEST FILE BITRATE TIME AVG_FPS AVG_SPEED AVG_WATTS
i5-6600T h264_1080p_cpu ribblehead_1080p_h264 18952 kb/s 116.352s 29.88 1.04x N/A